- Marcwell Maintenance/Construction
- 07781 126936 - St. Peter Port, Guernsey, Channel Isles, GY1 2UQ
- Property Maintenance Consultants
- 01481 242501 - Route Militaire, Vale, GY99 9ZZ
- Bailiwick Estates
- 01481 714243 - Grande Floor Tudor Ho, St Peter Port, GY1 1BT
- Jetson Ci Ltd
- 07781 163149 - Po Box 359, Guernsey, Channel Isles, GY1 3YB
- Portholme Properties Ltd
- 01481 712267 - Le Foulon Business Centre, Le Foulon, St. Peter Port, Guernsey, Channel Isles, GY1 1YR
- Victoria Homes
- 01481 725824 - Victoria Homes Complex, Park Lane, St Peter Port, Guernsey, Channel Isles, GY1 1LS
- Alderley Property
- 01481 234450 - Saints Fm Icart Rd, St Martins, GY4 6JG
- 1.3 miles from Castel
- Kapital Property Developments
- 01481 246804 - Brookdale Route Carre, GY2 4RG
- 1.4 miles from Castel
- Personal Property Management
- 01481 248628 - Le Courtil Ricard Folie Lane, Vale, Guernsey, Channel Isles, GY3 5SE
- 1.9 miles from Castel
- Sarnia Properties
- 01481 248944 - 9 Monmains La, Vale, GY3 5TZ
- 1.9 miles from Castel
- Anchor Homes
- 01481 251993 - The Barn, Rue Du Dos D'ane, Castel, Guernsey, Channel Isles, GY5 7LA
- 2.7 miles from Castel